Hot water change costs

freedreamz, Aug 28, 6:36pm
morning all, just wondering roughly what it would cost to go from a low pressure 135lt cylinder to a 250lt mains pressure cylinder all up, so installed, have been quoted $4000 and just thinking wow, that's alot

johotech, Aug 28, 7:28pm
That's what I would think as well.

Get some more quotes.

ira78, Aug 28, 8:07pm
Sounds expensive, but.
I can see prices for similar cylinders in the $2000 range, add a solid day's work, 8 hours at $150/hour That gets it up to $3200. Add in some addition bits and pieces of plumbing, maybe there's a lot of pipes that need to be checked and replaced because they can't be guaranteed to handle the higher pressure. That adds more time and cost. You're going with a significantly bigger cylinder, that might require a bit of hacking and carpentry to get it in place, and probably more bracing.

Starts adding up.

farwest, Aug 28, 8:14pm
I just upgraded to instantaneous gas, cost just over $3000. Mind you, the walls of the house were open, to repair the flood damage.

gabbysnana, Aug 28, 8:22pm
we went from 180 low to 180 high 2 years ago and it was $1700

lythande1, Aug 28, 9:22pm
Mains cylinders are expensive, add valves etc and yes it will be expensive.
8 hrs work though? Well, you drain the old one, wait. remove it, put new one in. depends if they charge for the waiting for old one to drain or not.
Drain it yourself first.
Then it isn't 8 hrs. Still a few, but not that long. 1/2 day more like.

jonners2013, Aug 28, 10:00pm
I've just been quoted $2,800 to remove existing 180L cylinder from the roof and then install a new gas continuous flow unit on the outside, along with required plumbing etc etc etc.

freedreamz, Aug 28, 11:27pm
thanks for that guys, will explain a bit more. Cylinder burst with frost, insurance going to cover.
we asked to go to mains pressure from low after checking all pipe work would handle. insurance agreed we would cover difference in price from low to mains for cylinder and they would pay installation etc. old cylinder was 10 years old, so new cylinders regardless of low or mains all have diff fittings now, job was done, insurance receive a invoice for $2157 and we received one for $1843, with all copper pipe, glands, valves etc etc on our invoice not the insurance invoice. Should I be concerned that the plumber is double dipping so to speak.

farwest, Aug 29, 2:00am
When I used to sell plumbing fittings, a 250L stainless steel cylinder retailed for around $2500, and the valve pack for around $350. An enamelled steel cylinder was less.

kam04, Aug 29, 2:47am
Nope, he's not double dipping. Could have been worse. You could have had to pay the lot. $1843 as your share of the change over is quite reasonable I think.

cagivachick1, Aug 29, 5:09am
$150 a hr for a plumber? youza

nate.pip, Aug 29, 7:34am
We did ours in June and it was about $3800.

aredwood, Aug 29, 10:45am
Did that price include electrical costs? How much new pipework was needed? As I have done low to mains conversions where there was no existing drain pipe to the cylinder location due to the old one being open vented. Which means I have to run a whole new pipe to outside that must be copper.

And where possible I will install the pressure limiting valve on the incoming watermain, instead of next to the cylinder. This is so the whole house will have equal main pressure hot and cold water. If you install the limiting valve so it only controls the cylinder feed. You will often get bad temperature changes in the shower when another tap gets turned on. And any guarantees on your tapware will be void because there is no limiting valve on the cold supply. But everyone wants a cheap job. Yet these people tend to be the first to complain when they have problems.

And there are other factors that separate a cheap job from a good one.

And there are some jobs that are difficult no matter what. Such as the one where the hot water cupboard was built over a stairwell. So to access the cylinder you had to put big planks from the top step. Over to the cupboard.

freedreamz, Oct 16, 8:09am
hubby and I went over invoice, we have found that we have been invoiced for stuff that was already in cupboard, ie ajax valve and pipes. We not saying we wanted a cheap job but his original rough quote was approx. $3000 give or take were his words, so we figured that with insurance paying the swap price, we were only up for about $1000, not $1800. Yet to chew the fat with him, going to get prices today.